WorksheetsExothermic and Endothermic Reactions
Total questions: 15
Worksheet time: 9mins
Name
Class
Date
1.
In an exothermic reaction, heat is ...
a)
taken in or absorbed
b)
given out or released
2.
In an endothermic reaction, heat is ...
a)
taken in or absorbed
b)
given out or released
3.
What type of reaction occurs in a hand warmer
a)
exothermic
b)
endothermic
4.
Exothermic reactions...
a)
Absorb energy
b)
Release energy
c)
Release Color
d)
Absorb Color
5.
Is photosynthesis an exothermic or endothermic reaction?
a)
Endothermic
b)
Exothermic
c)
Neither
6.
Baking bread and cooking an egg are examples of....?
a)
Endothermic processes
b)
Exothermic processess
c)
None of these
7.
Have you ever eaten sherbet sweets candy? They fizz in your mouth and your tongue feels cold. Why do you think that is?
a)
It is an exothermic reaction
b)
It is an endothermic reaction
c)
It is made of ice
d)
It is dissolving your mouth
8.
After you mix two substances together, a new substance forms. This is an example of:
a)
Physical Change
b)
Chemical Change
9.
What term is given to a reaction which transfers heat energy to the surroundings?
a)
Endothermic
b)
Reversible
c)
Exothermic
d)
Exotermic
10.
A student mixed two chemicals to allow them to react. The temperature before the reaction was 25 ° C. The temperature after the reaction was 18° C. Which of the following is true?
a)
The temperature changed
b)
It is an endothermic reaction
c)
It is an exothermic reaction
d)
Two of the answers are correct
11.
In an exothermic reaction, heat is ...
a)
taken in
b)
given out
12.
In an endothermic reaction, heat is ...
a)
taken in
b)
given out
13.
During an endothermic reaction in a beaker if we are part of the surroundings and touched the beaker, it would feel _______.
a)
Warm
b)
Cold
14.
If a chemical reaction is EXOTHERMIC, the temperature would....
a)
Stay the same
b)
Increase
c)
Decrease
15.
_____ reactions usually feel hot!
a)
endothermic
b)
exothermic
100 %
